Could a Woman Get Pregnant With Another Women Baby
Surprise formulation: Adult female conceives second child while conveying first
Updated 2305 GMT (0705 HKT) April xvi, 2021
(CNN)At offset, baby Noah was all lonely, growing beatifically in his mother's womb.
Noah'south first shut-ups, taken past ultrasound at seven and 10 weeks into the pregnancy, showed 39-yr-onetime mom Rebecca Roberts and 43-year-old dad Rhys Weaver the baby they had tried for more than a year to excogitate.
And so, at three months into the pregnancy, Noah of a sudden had visitor.
An ultrasound taken at week 12 showed that Noah had an unexpected piddling sister -- congenial twin Rosalie.
"I got pregnant whilst I was already pregnant, which was absolutely crazy ... because that's not supposed to happen," Rebecca said.
Called a superfetation, getting pregnant while already carrying a baby is so rare that one 2008 report found fewer than x recorded cases in the world.
Doctors told the couple the babies were really conceived most three weeks apart, Rebecca said.
"They realized that the baby was growing at a consistent rate of three weeks backside the start one, and it was so that they said to me, they think this is a superfetation pregnancy," she said.
"I couldn't believe information technology had happened to me," Rebecca added with a laugh. "But information technology did -- it's lovely. It's similar winning the lottery."
Dad felt the same: "I was elated to be having 1 child, just even more so for twins. The chore is washed in ane get! And and so Rebecca did some enquiry, and we realized how unique and how lucky nosotros were."
An incredibly rare effect
Superfetations are rare for a variety of reasons, said Atlanta gynecologist Dr. Lillian Schapiro.
First, women typically ovulate only in one case per wheel, releasing one or more than eggs simultaneously. If fertilization by the man's sperm is successful, the egg or eggs then implant in the uterus, the pregnancy begins and no further ovulation occurs.
"If a adult female has twins," Schapiro said, "two eggs are released at the same fourth dimension. And in the unusual case of triplets, those eggs are all released with one ovulation." Identical twins happen if a freshly fertilized egg splits.
In Rebecca's case, the egg was fertilized and implanted during the outset ovulation, and "somehow she ovulated again during that same cycle," Schapiro explained. "Another egg was besides fertilized -- became another embryo -- and at dissimilar times both embryos implanted in the uterus."
Another reason superfetations are exceptional, Schapiro said, is that once the pregnancy begins, the uterus is no longer a hospitable place for implantation. That ways the second embryo "must have managed to implant and grow at a stage when we would not have thought information technology would be able to abound."
"We have about never seen where two embryos start developing at different times," Schapiro said. "That is but nix short of amazing."
Rebecca had only taken ane dose of fertility drugs designed to stimulate ovulation before she conceived Noah. While that may be i reason for this rare occurrence, Rebecca said, information technology could likewise but exist a "medical curiosity."
'Tiny, tiny baby'
At first Rebecca and Rhys fretted over baby Rosalie'southward development in the womb, worried that being and then far behind her bigger brother might impact her health at birth.
"It could become either manner," Rebecca said. "Because the baby is so much smaller, there could be something wrong with information technology and it might not survive. That'south unremarkably the case.
"But they said this baby's actually growing consistently," she said. "It was a relief. It was a great relief."
Born by cesarean in September 2020, both babies did have to spend time in separate neonatal intensive care units (NICU). Rosalie, who was built-in at a tiny two pounds, 7 ounces, was sent to a specialty NICU about 15 minutes away from the NICU that cared for Noah, who was born at 4 pounds, 10 ounces.
"She was a tiny, tiny lilliputian infant just plumbing equipment in our easily, and even though he was tiny, y'all could run into that he was a much bigger baby," Rebecca said.
"Information technology was very hard. I had a major performance then our babies were in 2 separate hospitals as well," she said. "So it was actually hard work having to travel between them both."
Noah was able to come up abode in three weeks, but little Rosalie remained in intensive intendance for 95 days, coming home just before Christmas.
Today, at shut to vii months quondam, Noah is still ahead of Rosalie, but Rhys said, "She'due south a footling trooper. She's got her own little personality, simply I have no real worries at all."
Noah'south rolled over and is "really showing signs of trying to crawl, and so he might be off presently, which will be fun," Rebecca added.
"They're both talking, which is really really sugariness, considering they talk to each other. It'southward lovely. They interact with each other really, really well. Information technology's beautiful to watch."
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Source: https://www.cnn.com/2021/04/16/health/woman-pregnant-while-pregnant-wellness/index.html
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